From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Test results for the modified Enamelling Oven No.3, detailing temperature variations.
| Identifier | ExFiles\Box 167\2\ img053 | |
| Date | 9th June 1937 | |
| 6103. To EJJ. c. to Mr. Marriott. c. to Mr. Pym. c. to Mr. McDonald A.I.D.No.2. Rm{William Robotham - Chief Engineer}/Wst.15/JH.9.6.37. Re Enamelling Oven No.3. The above oven in the enamelling shop has now been further modified to give better distribution of heat and tests have been carried out to find the extent of variation. 12 thermo couples were used and placed in the same manner as in test report Rm{William Robotham - Chief Engineer}/Wst.12/JH.15.4.37. The readings tabled below show the result of the modification to be satisfactory. Test couple. Readings °F.{Mr Friese} Test Couple Readings °F.{Mr Friese} 1 304 344 356 386 7 304 344 359 390 2 302 342 354 385 8 302 340 354 385 3 299 338 352 383 9 304 344 358 388 4 297 336 351 379 10 306 345 361 392 5 302 342 354 383 11 299 335 351 383 6 304 344 358 386 12 306 344 356 385 Readings were taken at 15 minute internals The fixed couple reading correct at its point of insertion. Rm{William Robotham - Chief Engineer}/Wst. | ||